Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

duplicate key guard

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences, zero filler. The atomic creation scope is front-loaded and the authorization caveat follows as a qualifier; every clause earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With only two parameters, no nested objects, and no output schema, the definition covers what an agent needs to decide and call: atomic scope, idempotency via the schema's operationKey text, and the authorization gate. Return shape and conflict/duplicate-name behavior are the only meaningful omissions.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 50%: operationKey is well documented in the schema (reuse the same key and input after an uncertain response), while name is bare. The description adds no parameter-level detail such as uniqueness or naming constraints, so it neither compensates for the gap nor repeats the schema — baseline 3.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

Names a specific verb and resource ("Create one authorized project and its Default environment atomically"), including the side-effect of environment creation. It does not explicitly name a sibling alternative (e.g., firedrill_projects for listing), so it stops short of full differentiation, but an agent can tell what this tool produces.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The precondition "Requires human-authorized organization access, not agent self-approval" is genuinely useful routing guidance, telling the agent this is not a self-service action. However, there is no explicit statement of when to use this versus siblings like firedrill_projects or firedrill_service_create, and no exclusion conditions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.